Tire reclaimed rubber processed from waste tire rubber powder is often recycled into tire production, which can reduce the cost of raw materials while ensuring tire quality. When using natural rubber as the main raw material to prepare light-duty tire tread rubber, it can also be used in conjunction with tire reclaimed rubber. So in actual production, how much tire reclaimed rubber is appropriate for the light-duty tire tread? How should a rubber product factory adjust the formula of light-duty tire tread rubber containing reclaimed tire rubber?
1. The amount of reclaimed tire rubber in light-duty tire tread rubber
When using natural rubber to produce light-duty tire tread rubber, a small amount of butadiene rubber and styrene-butadiene rubber are generally used together. Among them, butadiene rubber can improve the cold resistance, wear resistance and elasticity of the tread rubber, and styrene-butadiene rubber can further improve the tire tire. Surface 2YLYY319 wear resistance, heat resistance, aging resistance. Tire reclaimed rubber has good compatibility with natural rubber, butadiene rubber and styrene butadiene rubber, and can be directly blended into natural rubber/styrene butadiene rubber/butadiene rubber compound.
In actual production, when the total amount of natural rubber/styrene-butadiene rubber/butadiene rubber is 100 parts, rubber product manufacturers can mix 10-20 parts of reclaimed tire rubber, and appropriately adjust the variety and amount of compounding ingredients in the formula. Further improve the performance and life of tire tread rubber. Among the tire reclaimed rubber, the tread reclaimed rubber processed from the tread rubber powder as the raw material has a higher effective rubber hydrocarbon content, good elasticity and high mechanical strength, and is more suitable for preparing light tire tread rubber.
2. Adjust the light-duty tire tread rubber formula containing tire reclaimed rubber
When blending tire reclaimed rubber in light-duty tire tread rubber to reduce the cost of raw materials, the variety and amount of compounding agents in the rubber product formulation need to be adjusted according to the change in the amount of reclaimed rubber. When the amount of reclaimed tire rubber increases (on the premise that the total amount of raw rubber remains unchanged), the amount of accelerator can be appropriately increased; appropriately increase the amount of reinforcing carbon black, or use a small amount of white carbon black; tire reclaimed rubber rubber hydrocarbon has been in a stable state , The aging resistance is better, and the amount of chemical antioxidants and physical antioxidants can be appropriately reduced.
When using reclaimed tire rubber in light-duty tire tread rubber to reduce the cost of raw materials, rubber product manufacturers need to select tire reclaimed rubber reasonably according to actual needs, determine the amount of tire reclaimed rubber reasonably, adjust the matching system appropriately, adjust the processing process parameters in time, and further optimize the light-duty Comprehensive indicators of tire tread rubber; later editors will continue to share with you the reference formula of light tire tread rubber containing reclaimed tire rubber and the issues that need attention in the production process.
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